|
CN111732543A
|
|
Preparation method of 4, 5-diamino-1- (2-hydroxyethyl) pyrazole sulfate
|
|
CN111848438A
|
|
Preparation method of 4, 6-diphenyl azoresorcinol and 4, 6-diamino resorcinol
|
|
CN111170958A
|
|
Preparation method of hydroxybenzomorph
|
|
CN110551284A
|
|
Preparation method of poly (p-phenylene-benzobisoxazole) fibers
|
|
CN110592706A
|
|
Industrial production method of poly (p-phenylene-benzobisoxazole) fibers
|
|
CN109824898A
|
|
A kind of polybenzoxazoles-is to penylene benzo diimidazole O-PBI liquid crystal copolymer and its preparation and application
|
|
CN109487355A
|
|
A kind of preparation method of polyparaphenylene's benzo dioxazole fiber
|
|
CN107963974A
|
|
The preparation method of 5- amino-2-methyl phenol
|
|
CN108191684A
|
|
The preparation method of 2- methylamino -5- chlorobenzophenones
|
|
CN108191683A
|
|
The pipeline preparation method of N, N- dihydroxy ethyl -4- nitrosoanilines
|
|
CN108276339A
|
|
4,5- diaminostilbenes-（2- ethoxys）The preparation method of pyrazole hydrochloride
|
|
CN108218711A
|
|
A kind of preparation method of 3,3 ', 4,4 '-tetra-amino-biphenyl
|
|
CN108250051A
|
|
The preparation method of 2,3- difluoro ethers
|
|
CN108191681A
|
|
The technique of one-step synthesis method 3- nitro -4- hydroxyethylaminos-N, N- dihydroxy ethyl aniline
|
|
CN108017542A
|
|
The pipeline preparation method of oxo dicarboxylic acid diethyl's ester analogs
|
|
CN108586374A
|
|
The preparation method of 2- phenyl benzoxazoles class compounds
|
|
CN106554255A
|
|
A kind of preparation method of 2,6 orcin
|
|
CN106565610A
|
|
Preparation method of 2-anilino-4-methyl-6-(2-chloropropen-l-yl) pyrimidine
|
|
CN106554283A
|
|
A kind of preparation method of 2,4 dinitro benzene oxyethanol
|
|
CN106588678A
|
|
Method for preparing 5-(2-hydroxyethyl) amino-o-methylphenol
|
